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Finding the Fourth Proportional to 72,886.15, 100,548.51 and 42,652.94

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Solution

The fourth proportional to 72,886.15, 100,548.51 and 42,652.94 is: 58,840.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,886.15 : 100,548.51 = 42,652.94 : x
  2. Step 2: Convert to fraction form
    72,886.15/100,548.51 = 42,652.94/x
  3. Step 3: Cross multiply
    72,886.15x = 100,548.51 × 42,652.94
  4. Step 4: Simplify right side
    72,886.15x = 4,288,689,564.12
  5. Step 5: Solve for x
    x = 4,288,689,564.12/72,886.15
  6. Step 6: Final answer
    x = 58,840.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.